Looking at the HEMI design (round combustion chamber) you want a spark
thrown in a downward angle versus the wedge heads, which is across. The
problem I find with these type plugs (Bosch and NGK multi tips) is the
gapping is too wide unless you have altered the timing and fuel maps to
compensate for the large gap.
I have experimented on both the 4.7 and the 1.3 DOHC Suzuki engines, which
has a hemi design combustion chamber. I had to reapply the gapping to meet
the manufacturer spec not Bosch. Another area if using this type of plug,
be careful not to us a hi-output coils with platinum spark plugs. I think
Bernd told that story.
--------------------------------------
Steven St.Laurent
C4i System Engineer
C4i Engineering Branch, PSD, MCTSSA
MARCORSYSCOM, U.S. Marine Corps
Office (760) 725-2506 (DSN Prefix: 365)
"Never be content with somebody else definition
of you. Instead, define yourself by your own beliefs,
your own truths, your own understanding of who
you are. Never be content until you are happy with
the unique person GOD has created you to be."
-----Original Message-----
From: Canucker Trucker [mailto:mal5@ualberta.ca]
Sent: Monday, June 03, 2002 10:32 AM
To: dakota-truck-moderator@bent.twistedbits.net
Subject: DML: Re: RE: Spark Plugs: Autolite
meaning what exacly?
-- Canuck -------------------------------------------- Y2K 4.7L 2wd 5spd"Stlaurent Mr Steven" <STLAURENTS@MCTSSA.USMC.MIL> wrote in message news:5F7587961057D211ABE9004095102F7803C5A757@ex.mctssa.usmc.mil... > > Apply the correct plug to design of the combustion chamber. > > -------------------------------------- > Steven St.Laurent > C4i System Engineer > C4i Engineering Branch, PSD, MCTSSA > MARCORSYSCOM, U.S. Marine Corps > Office (760) 725-2506 (DSN Prefix: 365) > "Never be content with somebody else definition > of you. Instead, define yourself by your own beliefs, > your own truths, your own understanding of who > you are. Never be content until you are happy with > the unique person GOD has created you to be." > > -----Original Message----- > From: Canucker Trucker [mailto:mal5@ualberta.ca] > Sent: Monday, June 03, 2002 7:51 AM > To: dakota-truck-moderator@bent.twistedbits.net > Subject: DML: Spark Plugs: Autolite > > > Sorry to open up this can of worms again, but I still haven't found a solid > consensus on this question: > > Which is better for the 4.7L Dak's, the Autolite 3923 or the 5224??? > > Also, just FMI (for my information), what is it about Autolites that > everyone prefers? Are there other brands of plugs that are comparable??? > > > Thanks in advance! > > -- > Canuck > -------------------------------------------- > Y2K 4.7L 2wd 5spd > > >
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